公开(公告)号：US06741821B2

公开(公告)日：2004-05-25

申请号：US10178685

申请日：2002-06-25

申请人： Akihiro Sugino ,  Yuuji Sawai ,  Mitsuru Takahashi ,  Kohki Katoh ,  Katsuya Kawagoe ,  Hiromi Ogiyama ,  Takahiro Tamiya

发明人： Akihiro Sugino ,  Yuuji Sawai ,  Mitsuru Takahashi ,  Kohki Katoh ,  Katsuya Kawagoe ,  Hiromi Ogiyama ,  Takahiro Tamiya

IPC分类号： G03G2116

CPC分类号： G03G15/0194 ,  G03G2215/00962 ,  G03G2215/0119 ,  G03G2221/183

摘要： An image forming apparatus comprises a latent image support which supports an electrostatic latent image. A charging unit charges a surface of the image support. A latent image formation unit forms an electrostatic latent image on the image support surface. A developing unit develops the latent image with toner to form a toner image. A transfer unit transfers the toner image from the image support to a recording medium. A transport unit transports the recording medium so that the image support surface is countered to a surface of the recording medium. The surface of the image support has a coefficient of friction ranging from 0.1 to 0.7 according to Euler belt method, and a difference between a speed of the image support and a speed of the recording medium is below 1%, and the image support has an outermost surface containing a filler and a binder resin.

摘要翻译： 图像形成装置包括支持静电潜像的潜像载体。 充电单元对图像支撑体的表面充电。 潜像形成单元在图像载体表面上形成静电潜像。 显影单元用调色剂显影潜像以形成调色剂图像。 转印单元将调色剂图像从图像载体转印到记录介质。 传送单元传送记录介质，使得图像支撑表面被对抗到记录介质的表面。 图像支撑体的表面根据欧拉带法具有0.1至0.7的摩擦系数，并且图像支持的速度与记录介质的速度之间的差异低于1％，并且图像支持具有 最外表面含有填料和粘结剂树脂。

公开(公告)号：US06829450B2

公开(公告)日：2004-12-07

申请号：US10614828

申请日：2003-07-09

申请人： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

发明人： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

IPC分类号： G03G1516

CPC分类号： G03G15/0131 ,  G03G2215/0119

摘要： In an electrophotographic image forming apparatus of the type including a plurality of image carriers arranged along an image transfer belt and an image transferring device configured to transfer toner images of different colors from the image carriers to a sheet being conveyed by an image transfer belt or by way of the image transfer belt by applying a bias to the belt, a bias applying method of the present invention can measure a current leaking between a plurality of high-tension power supply sections or to the ends thereof as AC resistances between respective terminals and therefore to accurately measure the leak currents of DC components. Therefore, when relatively high DC components are selected, a difference in current between a plurality of power supply sections can be maintained constant.

摘要翻译： 在包括沿着图像转印带布置的多个图像载体的类型的电子照相图像形成装置中，以及图像转印装置，其被配置为将不同颜色的调色剂图像从图像载体转印到由图像转印带或由图像转印带传送的纸张 通过对带施加偏压，图像转印带的方式，本发明的偏压施加方法可以测量多个高压电源部分之间或其端部之间的电流作为各端子之间的交流电阻，因此 以准确测量直流分量的漏电流。 因此，当选择相对高的DC分量时，可以将多个电源部之间的电流差保持恒定。

公开(公告)号：US06618565B2

公开(公告)日：2003-09-09

申请号：US10200178

申请日：2002-07-23

申请人： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

发明人： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

IPC分类号： G03G1516

CPC分类号： G03G15/0131 ,  G03G2215/0119

摘要： In an electrophotographic image forming apparatus of the type including a plurality of image carriers arranged along an image transfer belt and an image transferring device configured to transfer toner images of different colors from the image carriers to a sheet being conveyed by an image transfer belt or by way of the image transfer belt by applying a bias to the belt, a bias applying method of the present invention can measure a current leaking between a plurality of high-tension power supply sections or to the ends thereof as AC resistances between respective terminals and therefore to accurately measure the leak currents of DC components. Therefore, when relatively high DC components are selected, a difference in current between a plurality of power supply sections can be maintained constant.

摘要翻译： 在包括沿着图像转印带布置的多个图像载体的类型的电子照相图像形成装置中，以及图像转印装置，其被配置为将不同颜色的调色剂图像从图像载体转印到由图像转印带或由图像转印带传送的纸张 通过对带施加偏压，图像转印带的方式，本发明的偏压施加方法可以测量多个高压电源部分之间或其端部之间的电流作为各端子之间的交流电阻，因此 以准确测量直流分量的漏电流。 因此，当选择相对高的DC分量时，可以将多个电源部之间的电流差保持恒定。

公开(公告)号：US20060127116A1

公开(公告)日：2006-06-15

申请号：US11352213

申请日：2006-02-13

申请人： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

发明人： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

IPC分类号： G03G15/16

CPC分类号： G03G15/167

摘要： A transfer device transfers a visual image from an image carrier to a recording medium. The transfer device includes a first transfer element that moves and receives the visual image from the image carrier on a first surface of the first transfer element, a second transfer element provided opposite to the first surface of the first transfer element to pinch and convey the recording medium through a secondary transfer nip part, a facing roller provided on a second surface of the first transfer element opposite to the first surface thereof, and a constant-current power supply that applies an electric current voltage to a core metal of the facing roller to transfer the visual image from the first transfer element to the recording medium. The electric current voltage applied to the core metal has a polarity equal to a polarity of the visual image and is subjected to a constant-current control.

公开(公告)号：US07346287B2

公开(公告)日：2008-03-18

申请号：US11352213

申请日：2006-02-13

申请人： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

发明人： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

IPC分类号： G03G15/01

CPC分类号： G03G15/167

摘要： A transfer device transfers a visual image from an image carrier to a recording medium. The transfer device includes a first transfer element that moves and receives the visual image from the image carrier on a first surface of the first transfer element, a second transfer element provided opposite to the first surface of the first transfer element to pinch and convey the recording medium through a secondary transfer nip part, a facing roller provided on a second surface of the first transfer element opposite to the first surface thereof, and a constant-current power supply that applies an electric current voltage to a core metal of the facing roller to transfer the visual image from the first transfer element to the recording medium. The electric current voltage applied to the core metal has a polarity equal to a polarity of the visual image and is subjected to a constant-current control.

摘要翻译： 传送设备将视觉图像从图像载体传送到记录介质。 转印装置包括：第一转印元件，其在第一转印元件的第一表面上从图像载体移动和接收视觉图像;第二转印元件，设置成与第一转印元件的第一表面相对，以夹持并传送记录 介质通过二次转印夹持部分，设置在第一转印元件的与其第一表面相对的第二表面上的面对辊以及将电流电压施加到对置辊的芯金属上的恒流电源， 将视觉图像从第一传送元件传送到记录介质。 施加到芯金属的电流电压具有与视觉图像的极性相同的极性，并且进行恒定电流控制。

公开(公告)号：US06785500B2

公开(公告)日：2004-08-31

申请号：US10193219

申请日：2002-07-12

申请人： Mitsuru Takahashi ,  Yuuji Sawai ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Akihiro Sugino ,  Kohki Katoh

发明人： Mitsuru Takahashi ,  Yuuji Sawai ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Akihiro Sugino ,  Kohki Katoh

IPC分类号： G03G1516

CPC分类号： G03G15/162 ,  G03G15/161 ,  G03G2215/0119 ,  G03G2215/1652 ,  G03G2215/1661

摘要： An image forming apparatus of the present invention includes a cleaning device for cleaning an intermediate image transfer body. A cleaning blade included in the image transfer body is formed of fluorocarbon resin or a thin layer of fluorocarbon resin is formed on the surface of the intermediate image transfer body. Further, wax is coated on the intermediate image transfer body or wax or lubricant powder is contained in toner. A moving mechanism holds the cleaning blade spaced from the intermediate image transfer body at least when image formation is not under way.

摘要翻译： 本发明的图像形成装置包括清洁中间图像转印体的清洁装置。 包含在图像转印体中的清洁刮板由氟碳树脂形成，或者在中间图像转印体的表面上形成氟碳树脂薄层。 此外，蜡涂覆在中间图像转印体上或蜡或者润滑剂粉末被包含在调色剂中。 至少当图像形成不进行时，移动机构将清洁刮板保持与中间图像传送体间隔开。

公开(公告)号：US07049037B2

公开(公告)日：2006-05-23

申请号：US10912230

申请日：2004-08-06

申请人： Kohki Katoh ,  Masanori Suzuki ,  Yohichiro Watanabe ,  Masahide Yamashita ,  Akihiro Kotsugai ,  Toyoshi Sawada ,  Keiko Shiraishi

发明人： Kohki Katoh ,  Masanori Suzuki ,  Yohichiro Watanabe ,  Masahide Yamashita ,  Akihiro Kotsugai ,  Toyoshi Sawada ,  Keiko Shiraishi

IPC分类号： G03G15/01

CPC分类号： G03G9/09 ,  G03G9/0819 ,  G03G9/09708 ,  G03G9/09733 ,  G03G13/013 ,  G03G2215/0119 ,  Y10T403/32467 ,  Y10T403/32491 ,  Y10T403/32663

摘要： A color toner composition including at least toner particles including at least a binder resin; a colorant and a release agent dispersed in the binder resin; and a titania as an external additive, wherein the colorant has an average dispersion particle diameter not greater than 0.5 μm; the release agent and the binder resin are insoluble to each other; the toner particles satisfy the relationship: 0.05≦Dw/D4≦0.4, wherein Dw represents an average dispersion particle diameter of the release agent and D4 represents a weight-average particle diameter of the toner particles; and the titania has a segregation rate of from 0.5 to 5%.

摘要翻译： 至少包括至少包含粘合剂树脂的调色剂颗粒的彩色调色剂组合物; 分散在粘合剂树脂中的着色剂和脱模剂; 和二氧化钛作为外部添加剂，其中着色剂的平均分散粒径不大于0.5μm; 脱模剂和粘合剂树脂彼此不溶; 调色剂颗粒满足以下关系：其中Dw表示脱模剂的平均分散体粒径，D 4表示重均分子量 - 调色剂颗粒的平均粒径; 二氧化钛的偏析率为0.5〜5％。

公开(公告)号：US06258502B1

公开(公告)日：2001-07-10

申请号：US09579133

申请日：2000-05-30

申请人： Yasushi Nakamura ,  Noboru Kuroda ,  Ryoichi Ito ,  Yasuaki Iwamoto ,  Kohki Katoh ,  Yoshihiro Sugiyama ,  Kenichi Uehara ,  Tomio Kondou

发明人： Yasushi Nakamura ,  Noboru Kuroda ,  Ryoichi Ito ,  Yasuaki Iwamoto ,  Kohki Katoh ,  Yoshihiro Sugiyama ,  Kenichi Uehara ,  Tomio Kondou

IPC分类号： G03G9097

CPC分类号： G03G9/0819 ,  G03G9/09708 ,  G03G9/107

摘要： A two-component developer includes a magnetic carrier including magnetic carrier particles with an average particle diameter of 35 &mgr;m to 100 &mgr;m, and a toner including toner particles with a weight-average particle diameter of 6.0 &mgr;m to 11.5 &mgr;m, to which at least one additive is externally added thereto in an amount of 0.3 to 1.5 wt. % to the toner, the toner particles including (a) toner particles with a particle diameter of 5 &mgr;m or less with a content ratio of 15% or less by number, and (b) toner particles with such a particle diameter that is two times or greater than the weight-average particle diameter of the toner particles with a content ratio of 5% or less by volume, the toner particles satisfying a relationship of 0.60≦D25/D75≦0.85 as defined in the specification. A container in which the two-component developer is contained, and an electrophotographic image formation apparatus in which the container is incorporated are proposed.

摘要翻译： 双组分显影剂包括磁性载体，其包括平均粒径为35μm至100μm的磁性载体颗粒，以及包含重均粒径为6.0μm至11.5μm的调色剂颗粒的调色剂，至少一个 添加剂的外部添加量为0.3〜1.5重量％。 调色剂颗粒包括（a）粒径为5μm或更小的调色剂颗粒，含量比例为15％以下，（b）具有两倍粒径的调色剂颗粒 或大于含有率为5体积％以下的调色剂颗粒的重均粒径，调色剂颗粒满足说明书中定义的0.60 <= D25 / D75 <= 0.85的关系。 提出了容纳双组分显影剂的容器和其中装入容器的电子照相图像形成装置。

公开(公告)号：US06818370B2

公开(公告)日：2004-11-16

申请号：US10305191

申请日：2002-11-27

申请人： Osamu Uchinokura ,  Hiroyuki Fushimi ,  Kohki Katoh ,  Shinichiro Yagi ,  Toshiki Nanya

发明人： Osamu Uchinokura ,  Hiroyuki Fushimi ,  Kohki Katoh ,  Shinichiro Yagi ,  Toshiki Nanya

IPC分类号： G03G9087

CPC分类号： G03G9/08795 ,  G03G9/08755 ,  G03G9/08759 ,  G03G9/08762 ,  G03G9/08797 ,  G03G9/09716 ,  G03G9/09725

摘要： A toner for developing an electrostatic latent image, containing a colorant and a binder resin composed of two different resins (A) and (B), wherein resin (A) is substantially free of tetrahydrofuran insolubles, is selected from polyester resins and polyol resins and has such a molecular weight distribution according to gel permeation chromatography that (a) a main peak is present in a molecular weight of 3000 to 9,000 and (b) that portion of resin (A) having a molecular weight of 500 or less accounts for 4% or less based on a total weight of resin (A), wherein resin (B) is substantially free of tetrahydrofuran insolubles and is a polyester resin containing a diol component represented by the formula (1): and wherein the weight ratio of resin (A) to resin (B) is in the range of 60:40 to 85:15.

摘要翻译： 用于显影静电潜像的调色剂包含着色剂和由两种不同的树脂（A）和（B）组成的粘合剂树脂，其中树脂（A）基本上不含四氢呋喃不溶物，其选自聚酯树脂和多元醇树脂，和 根据凝胶渗透色谱法具有这样的分子量分布，（a）主峰存在于3000〜9000的分子量中，（b）分子量为500以下的树脂（A）的部分为4 基于树脂（A）的总重量的％或更少，其中树脂（B）基本上不含四氢呋喃不溶物，并且是含有由式（1）表示的二醇组分的聚酯树脂：其中树脂（B）的重量比 A）与树脂（B）的摩尔比在60:40至85:15的范围内。

公开(公告)号：US06716561B2

公开(公告)日：2004-04-06

申请号：US09993606

申请日：2001-11-27

申请人： Keiko Shiraishi ,  Masanori Suzuki ,  Yohichiroh Watanabe ,  Masahide Yamashita ,  Akihiro Kotsugai ,  Toyoshi Sawada ,  Kohki Katoh

发明人： Keiko Shiraishi ,  Masanori Suzuki ,  Yohichiroh Watanabe ,  Masahide Yamashita ,  Akihiro Kotsugai ,  Toyoshi Sawada ,  Kohki Katoh

IPC分类号： G03G9087

CPC分类号： G03G9/08728 ,  G03G9/0825 ,  G03G9/08711 ,  G03G9/08731 ,  G03G9/08755 ,  G03G9/08759 ,  G03G9/08782

摘要： A toner for developing electrostatic latent images, including a matrix of a first resin selected from polyester resins, polyol resins and mixtures thereof, a plurality of domains of a second resin dispersed in the matrix and containing a wax. The amount of the wax is 2-15% by weight based on the weight of the toner The matrix is substantially free of domains of the second resin having a maximum diameter of greater than 2.0 &mgr;m. A part of the domains containing the wax having a maximum diameter of at least 0.2 &mgr;m constitutes a part of an outer surface of the toner.

摘要翻译： 一种用于显影静电潜像的调色剂，包括选自聚酯树脂，多元醇树脂及其混合物的第一树脂的基质，分散在基质中并含有蜡的第二树脂的多个结构域。 基于调色剂的重量，蜡的量为2-15重量％。基质基本上不含最大直径大于2.0μm的第二树脂的结构域。 含有最大直径至少为0.2μm的蜡的一部分畴构成调色剂的外表面的一部分。